毕业设计：USB KEY 文件加密系统的设计与实现（终稿）.doc

USB KEY 文件加密系统的设计与实现 摘 要 随着信息技术的飞速发展，文件的安全性越来越被重视。为了实现对个人重要信息的加密，防止别人窃取个人的文件信息，提高文件的安全性，文件加密成为了一个重要的课题。 本设计为了解决用户记忆烦琐的密码问题，以软、硬件相结合的方式，实现了文件加密和解密的功能。具有操作简单、稳定性高、兼容性好、速度快等特点。该系统使用Rockey2加密锁，用Delphi进行开发。本系统分为两部分，一部分是文件的加密解密；另一部分是加密锁的管理工具。后一部分由本人完成。 本文主要介绍了USB KEY文件加密工具的总体设计和详细设计思路以及应用和编码。在总体设计中主要介绍了设计该工具的需求分析、系统的选型、以及Rockey2加密锁的介绍。在详细设计中主要介绍了系统功能的分析、Rockey2加密锁的内存分配Delphi；管理 The Files Encryption Tool Based on USB-KEY 棗d USB -KEY Management System Abstract With the rapid development of IT, the security of the files has been increasingly attention. To implement encryption for important personal information, preventing others that steal personal information, improving the security of the document, encryption has been a very important topic. This design aims to solve the problem that users passwords are remembered difficulty, implement the functions of encryption and decryption for documents by the combination of software and hardware. It has many characteristics, such as simple, stable, good compatibility, speed and so on. The system uses Rockey2 USB Key, developed with Delphi. This system has two parts, one part mark is the document encryption deciphering; another part of the administration implement being to encrypt a lock. The queen part is completed by me. This paper introduces the brief design, detailed design, the application and coding of USB KEY file encryption tool. It introduces the requirements analysis, the system selection for the design, and Rockey2 encryption in the brief design. And it introduces the main functions of the system analysis, the memory allocation of encryption Rockey2, and the related database design in the detailed design. Besides, in the aspect of application and coding, it main introduces the hardware installation, initialization, writing users’ name, passwords for application and coding, and design of management interface, operation of the database. Finally, it introduces the shortcomings of the system and how to improve it. Key